Apparatus for making corrugated and creased wooden shavings.



A. L. HELLERMANN. APPARATUSFOR MAKING CORHUGATED AND CREASED WOODENSHAVINGS.

APPLICATION FILED APR. 2 i917- ?ateuted June 12, 1917.

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A. L. HELLERMANN. AFPARATUS FOR MAKING CORRUGATED AND CREASED WOODENSHAV APPLICATION FILED APR. 2.19.11. LQQQXM-m INGS.

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` Mmm/Er Patented June 12, 1917.

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AUGUST LORENZ HELLERMANN, OF DUSSELDORF, GERMANY.

Specification of Letters Patent.

Patented June t2, Multi.

Application filed April 2, 1917. Serial No. 159,307.

To all whom t may concern.

Be it known that I, AUGUST LORENZ HEL- LEHMANN, a citizen of the GermanEmpire, and resident of Dusseldorf, Germany, have invented certain newand useful Apparatus for Making Corrugated and Creased Wooden Shavings,of which the following is a specification.

My invention relates to an apparatus for making corrugated and creasedwooden shavings.

separating shavings from wood, e. g. a plane, a resistance whichprojects into the path of the shavings as 'they pass the throat so as toobstruct their progress.

Such corrugated or creased shavings are suitable as a stufling forcushions, etc., a filling for filters, as a packing material, and alsoas a material for litter or the like.

To use ordinary, 'L'. e. such shavings that undergo no furthertreatment, as a stuiing or a packing material, is very old. Theseshavings, however, have the drawback that they become unresilient when aconsiderable pressure is continually exerted on them. In order to keepthe shavings resilient, which is necessary if theyv are to besuccessfully used for any of the purposes specified, I arrange aresilient resistance in the path of the shavings separated from the woodwhich, in obstructing their progress, creases or corrugates them.Shortly after they have been separated, the shavings are comparativelysoft and yielding so that they do not break and remain in theircorrugated or creased condition after leaving the plane.

The apparatus for creasing or corrugating the shavings can be adapted tohand tools as well as to planing machines. Owing to its simpleconstruction and smallness, it can also be easily adapted to existinghand planes or existing planing or `wood wool making machines. In aplaning machine it may, for instance, be arranged in the drawer for thedressing knives, Vin a wood wool making machine vin the cutter slide.

Reference is to be' had to the accompanying drawings in which I haveillustrated my invention by way of example, and in which-` Figure l is alateral view 0f a plane provided with my apparatus, partly broken away;Fig. 2 is a plan view of said plane; Figs. 3 and t are cross-sections ofthe plane on lines 3-3 and el-A of Fig. 1, respec- TWith this object inview, I ar` range in the throat of a tool, suitable forA tively; Fig. 5is a detail elevation of the parts effecting the corrugation or creasingof the shavings; Fig. 6 is a section on line 6 6 of Fig. 5; Figs. 7 to 9illustrate some stages of the corrugating or creasing process.

rIhe plane, comprising a stock a, a cutter b and a cover iron c, is ofthe usual construction. In the passage or throat of the stock a isaparallel guide i which is fixed to a plate e. This plate is held on thestock by means of screws. A slide is movable in said parallel guide andsupported by screws g which pass through slots L of guide d, see Figs. 4and 5. Fixed to the upper end of slide j' is a bracket i which passesthrough a further slot f: of guide (Z, see Fig. ll, and carries a screwZ to which is attached one end of a spring m. The other end of saidspring fm is held by a bracket fn fixed to plate e. At its lower end,slide f has two bearings o, in which a pin p is carried. A flap r isfixed on this pin by means of lateral lugs g. An adjustable spring stends to keep this flap in the position shown in full lines in Fig. 5.

I prefer to divide the shavings into a plurality of narrow strips, forwhich object I arrange a cutting device preceding the cutter of theplane and making a series of parallel cuts in the surface to besmoothed. In the construction illustrated, this cutting device is aroller t having a plurality of circular edges. The pin on which saidroller revolves is held in two plates u inserted in the sides of thestock a and held by screws o. The holes in plates 'a through which saidscrews pass are elongated so that the plates 'a may be displaced and theroller t raised or lowered accordingly. A set screw w is provided foreach plate u.

VA shaving e, after being divided into strips by the cutting vdevice(roller t) is raised by the cutter Zo as usually and travels to such anextent that it is able to pass under the flap, see Fig. 9. Theresistance of slide f and Hap fr may be regulated as desired byvadjusting springs m and s, respectively, according to the desiredthickness of the shavings or the extent to which they are to becorrugated or creased. It will be observed that the slide j' and theflap r are movable lengthwise of the throat or passage through which theshaving .e is expelled; the pivot y) is located at one side of saidpassage in such a'position `that a :radiusdrawn from the center of thepivot to the'point'at whichthe Hap r is lirst engaged by the end of theshaving e, will be approximately perpendicular tothe llongitudinal axisof said passage, see Fig. 7. The movement of the slide f, whilelengthwise of the throat through which the shaving a passes, ispreferably not exactly in -line with the axis of said throat, butobliquethereto, `thus forming a lbetter clearance between `the cover iron c andthe flap r whenthe slide moves outward tothe position shown in -Fig. 9.

Obviously, it-makes no difference lwhether the plane is moved over thewood, as is 'the rule fin hand planes, or the wood Iis lmoved over theiplane, as .in planing machines.

The shavings so obtained may be 4disinfected, for impregnated withfire-proof materials, it desired.

I claim:

l. Inan apparatus for makingcorrugated and creased wooden shavings, apassage or throat through `-which said shavings pass, a cutter forseparating said Vshavings from the wood, and a resilient resistancearranged in the path of said shavings and movable lengthwise of saidpassage.

2. In an apparatus for making corrugated and creased wooden shavings, apassageor throat through `-which said 4shavings pass, a

cutter Efor separating said shavings from the wood, and a resilient partmovable lengthwiselof said passageengaging vthat side of saidy cutter'onwhich the shavings are moving.

3. In an apparatus for making corrugated and creased wooden shavings, apassage or throat Ithrough vwhich said shavings pass, a cutter forseparating said shavings from the wood, a'eover iron'on'saidcutter,-anda resilient part movable lengthwise of said pas-`sage-engaging that side of said cover iron on 'which fthes'havings aremoving.

4. In alnapparatus for making corrugated and creased wooden shavings, apassage or throat through which said shavings pass, a cutterfor-separating said shavings from the wood, and a resilient pivoted flapmovable lengthwise of said passage engaging that sidecf'said cutter onwhichthe shavings aremoving.

-5. 11n an apparatusfforlmaking corrugated and lcreased wooden shavings,a passage or throat through which said shavings pass, a cutter torseparating said shavings trom the wood, a cover iron on said cutter, and.a resilient pivoted Hap movable lengthwise oit said passage engagingthat side of said cover iron on which the shavings are moving.

6. finan apparatus for making' corrugated and creased wooden shavings, apassage or throat through which said `shavings pass, zy cutter iorseparating said shavings from the wood, a slide adapted to move in aguide connected with said cutter, and a resilient partcarried on saidslide and engaging that side ofsaid cutter on which theshavings aremoving'.

7. ln an apparatus for making corrugated and creased wooden shavings, apassage or throat through which saidshavings pass, a cutter forseparatingsaidshavings from-the wood, la cover iron on said cutter, aslide adapted tomove ina guide-connected with said cutter, and aresilientpart'carried onl said `slide and engaging `that -side yof saidcover iron on :which fthe shavings are moving.

8. In an apparatus fforlmaking corrugated and creased `wooden shavings,a passage :or throat through which said-shavings pass, a cutter ttorseparating said shavings from `the wood, a resilient slide adapted tomove in a guide connected with saidcutter, and aresilient part carriedonsaid slide `and engaging that side'oiI said cutter-on which the-shavings are moving 9. In-an apparatus for making corrugated andcreasedwooden shavings,1a `passage or throat through 'which said shavings pass,fa cutter 1to1' separating said shavings from the wood, a cover -irononsaid cutter, a lresilient `slide adapted to `move vin a guide lconnectedwith 4said cutter, and a resilient part carried onsaid'slideand-engagingfthat side oi. said coveriron on which theshavings are moving.

l0. In an apparatus for making corrul' gated and creased woodenshavings, a passage -or "fthroat through which said shavings pass, acutter for separating said shavings fromfthe wood, a-slide adapted tomove in a guide connectedwith said-cutter, aspull-back spring attachedto said slide, and a resilient part engaging that -side of said cutteron which the shavings are moving.

111. In an apparatus for making corrugated and creased wooden shavings,a passage or throat through which said shavings pass, a Vcutter forseparating said shavings from the wood, a cover iron on said cutter, aslide adapted to move in a guide connected with said cutter, a pull-backspring attached to said slide, 'and a resilient part engaging that sideof said cover iron on which the shavings are moving.

l2. 'In an apparatus for making vcorrugated and creased Wooden shavings,a passage or throat through which said shavings pass, a cutter forseparating said shavings from the Wood, a slide adapted to move in aguide connected with said cutter, a pullback spring attached to saidslide, a flap pivoted on said slide, and a spring engaging said Hap andsaid slide and tending to force said flap against said cutter.

13. In an apparatus for making corrugated and creased Wooden shavings, apassage or throat through which said shavings pass, a cutter, a coveriron on said cutter, a slide adapted to move in a guide connected withsaid cutter, a pull-back spring attached to said slide, a flap pivotedon said slide, and a spring engaging said flap and said slide andtending to force said flap against said cover iron.

14. An apparatus for making corrugated shavings, comprising a cutter forparing said shavings from the material, a passage or throat, and ayielding resistance arranged in the path of said shavings and movableobliquely with reference to the longitudinal axis of said passage.

15. An apparatus for making corrugated shavings, provided With a cutter'for paring shavings from the material, a passage or throat throughWhich the shavings are eX- pelled, and a yielding flap pivoted at oneside of said passage and adapted to engage the free end of the shavingin said passage, the radius connecting the center of the pivot axis withthe point of the flap initially engaged by the free end of the shaving,being approximately perpendicular to the longitudinal axis of saidpassage.

In testimony whereof I havsigned this specification.

AUGUST LORENZ HELLERMANN.

Witnesses:

FRANCES NUFER, DORA NUFER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

